//Nguyen Trung Hieu
import javax.swing.undo.UndoManager;
import javax.swing.undo.UndoableEdit;

public class PriSecUndoRedo extends UndoManager{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	public UndoableEdit editToBeRedone(){
		return super.editToBeRedone();
	}
	public UndoableEdit editToBeUndone(){
		return super.editToBeUndone();
	}
	public UndoableEdit lastEdit(){
		return super.lastEdit();
	}
	public void redoTo(UndoableEdit edit){
		super.redoTo(edit);
	}
	public void trimEdits (int from, int to){
		super.trimEdits(from, to);
	}
	public void trimForLimit(){
		super.trimForLimit();
	}
	public void undoTo(UndoableEdit edit){
		super.undoTo(edit);
	}

}